K'NEX DNA Replication and Transcription Kit Overdue

K'NEX DNA, Replication and Transcription Kit includes 521 K'NEX rods and connectors as well as a 24 page full color building instruction booklet. Set contain combinations of parent DNA, daughter DNA and mRNA molecules. It helps in creating 7 DNA and mRNA molecules. It lets students to build and learn using models that demonstrate phosphate groups, color-coded hydrogen bonds, deoxyribose/ribose sugars, four codons and color coded nucleotides. Models are packed in a stackable plastic storage case.